What the US government is doing to Goddard Space Flight Center is devastating. GSFC is the largest science center at NASAs disposal. It is home of Hubble operations, I was lucky enough to see JWST, Osiris-Rex &Roman built there. This destruction will gut US &global space science for decades to come

Very sad that I will not be able to perform for nine lessons this year in Cardiff. @cosmicshambles.com do this for the love of sharing science, art, & stories & make no money personally. If you like things like that buy tickets to support local events and help maintain the joy of spreading stories.

On a bus back to Oxford after a great time talking at Wantage Literary Festival. Anyone want to #askanastronomer anything? 🔭

Are you a grad student interested in writing for Astrobites, or do you know one? We're recruiting! Apply by November 26 :) astrobites.org/2025/10/31/a...

Super excited to be joining the @cosmicshambles.com crew again for their Nine Lessons show. This year, by popular demand, in Cardiff! Get your tickets now 🎫 for December 9th www.glee.co.uk/performer/ni...

People have asked us for ages to bring Nine Lessons to Cardiff so we're slated to be there on Dec 9th this year! That is, if all of you who begged us to bring the show there buy tickets coz it's not looking great right now... @robinince.bsky.social @garwboy.bsky.social www.glee.co.uk/performer/ni...

For #JWST Cycle 5, proposals should be submitted even if observations appear non-schedulable in APT due to guide star availability in bright crowded fields. Get the details: ow.ly/qlTG50X8LK8

It is that time of year when these damn pandas plague us all! #JWSTC5 #exoplanets

London! Next Friday! The Universe WILL end in the company of @astrokatie.com, Steve Pretty, many musicians and myself. Do please come join us wegottickets.com/event/676292

As a theoretical cosmologist, I'm frequently asked "what is the benefit of the work you're doing for people's lives?" Nothing I work on makes money or cures disease. There are a few different answers one can give, at various levels of "convincing" / "actually relevant to why the work is done." 1/🧵

Thirty years ago Monday, astronomers announced the first planet around a Sunlike star. Since then they have cataloged more than 6,000 alien worlds. I asked a bunch of astronomers what their favorite exoplanet is, and wrote about it for @nature.com. What's yours? 🧪 #astronomy

UT Austin Astro is hiring! It's an open call, but definitely interested in getting another exoplanet person! Feel free to reach out with any questions about the department or living in Austin! aas.org/jobregister/...

Today feels like a good time to announce ten new special guests for this year's Nine Lessons shows including @particleclara.bsky.social, @mariaviolaris.bsky.social, @mrsamsee.bsky.social, @stellarplanet.bsky.social, @akshatrathi.bsky.social, John Hegly and more! Tix cosmicshambles.com/ninelessons

This year we've been really swinging for the fences. Our latest video is our biggest one yet, nearly an hour long and involving half a dozen experts. Asking "Should lying about climate change be illegal?" and, if so, how do we make it so? youtu.be/FKtCuwfUCJg

A proud part of the ~12% even though schools not that long ago tried to force it out of me. Data always requires careful and measured interpretation.

Did you miss last week's Deep Space Dialogues with STScI's Nestor Espinoza, as he chatted about atmospheres of distant exoplanets? Watch it now and learn about how #NASAWebb is dramatically changing our understanding of planetary systems in the cosmos. 🔭 🧪

I'm looking for a part-time research assistant to help research and fact-check long form YouTube videos, with an emphasis on climate misinformation campaigns. If you or someone you know would be a good fit, please check out this form! Applications close on 26/9. forms.gle/mpyzcdjwv63C...

✨✨✨Another Virga advert✨✨✨ Introducing V2.0, with fractal aggregate clouds! Restricted to spheres no more! We handle the dynamics and the optics self consistently. Led by me and PhD candidate extraordinaire Matt Lodge (who is looking for a postdoc 👀 and is amazing). arxiv.org/abs/2509.06708

Happy Publication Day to The Whispers of Rock! A journey that started with the Nan Shepherd Prize to this epic work that reframes our relationship with rock. Link to buy: anjanakhatwa.com/writing #rockwhisperer #WhispersOfRock #naturwriting

There's a decent chance of seeing the aurora tonight - it may be visible as far south as the Midlands (perhaps even further south) 🌃

A beautiful depiction of planet formation

It has been ten years since my PhD now officially marked with a new passport 🛂 taking it for a test drive to the US of A. See you in a week.

I'm very excited to be able to share Yayaati Chachan's Hubble/WFC3 transit spectrum of ultra-hot Jupiter KELT-20b. Using *all* of WFC3's grisms, we get a 0.2-1.7 micron spectrum showing absorption by metals at in the UV and only weak absorption by water in the IR. 🔭🪐

Published in #MNRAS: "Lightning activity on a tidally locked terrestrial exoplanet in storm-resolving simulations for a range of surface pressures", Sergeev et al. This is Fig. 4: to read the paper please visit academic.oup.com/mnras/articl... @oxfordacademic.bsky.social @royalastrosoc.bsky.social

I do my best writing early in the morning before getting out of my pajamas. I don’t know why I try to force it any other way to much stress and inefficiency.

Yes, high spectral resolution in space is surely the future for exoplanets. It doesn't even need to be that "high" res, JWST's R=2,700 is delivering great science, just think what could be done with a R=3,000-5,000 integral field spectrograph behind a coronagraph on HWO 🤯

If you want know all things #HabitableWorldsObservatory then follow @drjovian.bsky.social for the next two days as she posts from the #HWO25 meeting in Washington DC. Thanks Jo for keeping us posted ☺️

Our new Faraday Discovery Fellowships Accelerated International Route provides a fast-track option for international mid-career researchers looking to relocate to the UK, providing up to £4m over a five-year period. Find out more: #RSGrants royalsociety.org/grants/farad...

I love telling this story in the Tyndall lecture theater at Bristol and getting the students to help with repeating the same experiment she did. #EnvironmentalPhysics

Sunday plug for tomorrow’s excellent #SkyAtNight on the diversity of exoplanets, including a visit to @esa.int to see PLATO. Also happens to mark 25 years since my first appearance… www.bbc.co.uk/programmes/m...

Wakeford: the Habitable Worlds Observatory will be incredible for UV-Optical spectra. Mega-Hubble! Look out on arXiv next week for community white papers on the science we can do with HWO. #AllTheWavelengths

Done! Climate change is real and causes extreme weather conditions like storms. The companies responsible need to be held accountable. Show them we know!

Happy Solstice everyone ☀️Summer in the North, Winter in the South! The tilt of the Earth is what gives us seasons and constantly changes the length of daylight. So if you are heading into or out of winter today enjoy the astronomical fluke and marvel that is our planet 😁

Every country is warming. Every country is experiencing more extreme weather events because of climate change, mainly caused by burning fossil fuels. www.ShowYourStripes.info Time to #ShowYourStripes and start climate conversations to prompt actions to reduce emissions, personally & collectively.

Just gave blood for the first time! 🏥 Previous attempts have been turned away for my tiny veins and poor flow rate but the National donor center found me a nurse willing to give me a go 😁 still big no on the left side but they put a note in saying there is a little vein with “maybe” on the right!

I told you we’d be back

You have been kidnapped and a character from the last TV show you watched is trying to rescue you. Who is coming to save you?

Macquarie has put out the call for fully-funded PhD applications in all areas of astronomy, to start January 2026: aas.org/jobregister/... Applications due 2 July to [email protected]. International scholarships will be competitive, typically expecting publication and/or excellent GPA.

This is essential. We just had the White House budget for NSF and NASA. Would kill American science, and hurt the rest of us for decades.

Right, everyone! On WEDNESDAY I am giving the last of my @greshamcollege.bsky.social lectures, a story of golden mirrors & little red dots. Free tickets in person or online here: www.gresham.ac.uk/whats-on/new...

Ready for the latest K2-18b drama? Madhusudhan is claiming *even stronger* evidence of DMS after analysing both near-infrared and mid-infrared JWST data. But another study finds no evidence at all. Read on for a quick update on everyone's f̶a̶v̶o̶u̶r̶i̶t̶e most newsworthy exoplanet. 🧵 #exoplanets 🔭

And that is the TV off for the next 5 mins while #Eurovision supports genocide. I hope there is a big blip in viewing - go make a nice cuppa instead

Said yes to a AAS review late last week, and now start work on Monday with 6 emails (all sent after 5pm Friday and over the weekend) asking me to review more papers! I do not work on Weekends. Just because I said yes to one does not mean I can do them all. Please think before emailing AAS journals

🚨 Last chance! 🚨 The deadline to get applications in for the Caroline Herschel Prize Lectureship is TOMORROW (Wednesday 30 April). If you're a woman astronomer keen to apply, find out what you need to do at: herschelsociety.org.uk/caroline-her...

Less than a month till the deadline to apply for this PhD place!

I chose the perfect time to take a break from work so I don’t have to respond to over sensationalized science claims that are contrary to statistical or logical evidence. Have fun everyone :) I can assure you the team are loving the discord!

Do you want to do cutting-edge exoplanet science with JWST in a Bavarian castle? If yes (and why would you say no???) there are still a few spots open for the Ringberg Workshop "Signal in the Noise" (Nov 17 - 21). Register here sites.google.com/view/jwst-ri...

Hampton U (HBCU in VA) is looking to hire assistant/associate prof in atmospheric and planetary science! They are interested in exoplanetary science too! #BlackInphysics #BlackandSTEM #BlackInAstro #BlackInChem home.hamptonu.edu/hr/2025/02/1...

Last talk of the morning is by Hannah Wakeford, talking about benchmark target WASP-17b which has been observed in transit and eclipse over the JWST wavelength range. NIRISS provides a tight water constraint, MIRI highlights the presence of quartz clouds. There is also H minus absorption #ukexom25

If you want to follow along with #ukexom25 then check out @drjovian.bsky.social as she posts about all the talks and awesome exoplanet science being done in the UK!